keyctl_join_session_keyring - join a different session keyring
#include <keyutils.h> key_serial_t keyctl_join_session_keyring(const char *name);
keyctl_join_session_keyring() changes the session keyring to which a process is subscribed. If name is NULL then a new anonymous keyring will be created, and the process will be subscribed to that. If name points to a string, then if a keyring of that name is available, the process will attempt to subscribe to that keyring, giving an error if that is not permitted; otherwise a new keyring of that name is created and attached as the session keyring. To attach to an extant named keyring, the keyring must have search permission available to the calling process.
On success keyctl_join_session_keyring() returns the serial number of the key it found or created. On error, the value -1 will be returned and errno will have been set to an appropriate error.
ENOMEM Insufficient memory to create a key. EDQUOT The key quota for this user would be exceeded by creating this key or linking it to the keyring. EACCES The named keyring exists, but is not searchable by the calling process.
This is a library function that can be found in libkeyutils. When linking, -lkeyutils should be specified to the linker.
keyctl(1), add_key(2), keyctl(2), request_key(2), keyctl(3), keyrings(7), keyutils(7), session-keyring(7), user-session-keyring(7)
This page is part of the keyutils (key management utilities) project. Information about the project can be found at [unknown -- if you know, please contact email@example.com] If you have a bug report for this manual page, send it to firstname.lastname@example.org. This page was obtained from the project's upstream Git repository ⟨http://git.kernel.org/pub/scm/linux/kernel/git/dhowells/keyutils.git⟩ on 2021-08-27. (At that time, the date of the most recent commit that was found in the repository was 2020-07-07.) If you discover any rendering problems in this HTML version of the page, or you believe there is a better or more up-to-date source for the page, or you have corrections or improvements to the information in this COLOPHON (which is not part of the original manual page), send a mail to email@example.com Linux 20 Feb 2014KEYCTL_JOIN_SESSION_KEYRING(3)
Pages that refer to this page: keyctl(2), keyctl(3), session-keyring(7)